content: /*
   * Copyright 2015-2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  package hu.akarnokd.queue;
  
  import org.junit.*;
  
  public class SpscLongArrayQueueTest {
      @Test
      public void simpleUse() {
          boolean[] hasValue = new boolean[1];
  
          SpscLongArrayQueue q = new SpscLongArrayQueue(32);
  
          for (int i = 1; i <= 32; i++) {
              Assert.assertTrue("" + i + ": ", q.offer(i));
          }
  
          Assert.assertFalse(q.offer(33));
  
          for (int i = 1; i <= 32; i++) {
              Assert.assertFalse(q.isEmpty());
              Assert.assertTrue(q.hasValue());
              Assert.assertEquals(i, q.peek());
              Assert.assertEquals(i, q.peek(hasValue));
              Assert.assertTrue(hasValue[0]);
              Assert.assertEquals(i, q.poll());
          }
  
          Assert.assertTrue(q.isEmpty());
          Assert.assertFalse(q.hasValue());
          Assert.assertEquals(0, q.peek());
          Assert.assertEquals(0, q.poll());
  
          Assert.assertEquals(0, q.peek(hasValue));
          Assert.assertFalse(hasValue[0]);
  
          Assert.assertEquals(0, q.poll(hasValue));
          Assert.assertFalse(hasValue[0]);
      }
  }
  